ingersoll



(No Model.)

R.UH. INGERSOLL. 4 TYPE WRITING MACHINE.

No. 478,109. 7 Patented July 5, 1892.

UNITED STATE PATENT @FFICE.

ROBERT H. INGERSOLL, OF NEW? YORK, N. Y.

TYPE-WRITING MACHIN E.

SPECIFICATION forming part of Letters Patent No. 478,109, dated July 5, 1892.

Application filed January 24, 1891. Serial No. 378,986. (No model.)

. of which the following is a specification.

My invention relates to type-writing machines, and has for its object the provision of a centrally-pivoted carriage, the forward arm carrying a type-wheel and the rear piece being provided with a feed-pawl, and of other improvements hereinafter set forth, the whole being simple in construction, inexpensive in manufacture, and efficient in practical use.

To attain the desired end my invention consists in the construction and arrangement of parts first fully described and then pointed out in the claims.

In the accompanying drawings, which form a part of this specification, Figure 1 represents a plan view of a machine constructed according to my invention. Fig. 2 is atransverse section of the same on the line 0000, Fig. 1. Fig. 3 is a detail View showing the end of the spring-plate that supports the type-wheel. Fig. 4 is a detail view representing the feed movement; and Fig. 5 is a cross-section of the type-wheel on the line y y, Fig. 2.

Like letters of reference, wherever they occur, indicate corresponding parts in all the figures.

The machine is constructed as follows: On one side of a base-plate A, by means of brackets B B,I fix the guide-rod O, to which guiderod I attach the writing mechanism in the form of a carriage D, provided with a longitndinal sleeve d, which surrounds the guiderod loosely, allowing the carriage to be moved easily to and fro along the guide-rod O. The carriage D is also provided with a transverse curved elevated arm D, terminating in a longitudinal sleeve d, in which is journaled the axis or spindle E, the'ends of which are respectively provided on opposite sides of the sleeve 61 with an operating-button or thumbnut E and with a printing-disk or type-Wheel F. The type-wheel F is formed with afiange f, preferably cut with rectangular or equivalent semicircular or V-shaped notches f adapted and arranged to fit snugly on the vertical guide-pin h of the slotted plate or foot H, extending beneath the type-wheel, as hereinafter set forth, one end of which rests upon the platen A, formed by one side of the base A, and the otherextremity of which is secured to the carriage D.

The type-wheel F is providedupon its periphery with type-faces of suitable description to print any characters or letters that may be desired, which type-faces may be made of metal, rubber, or any other suitable material, and it is also provided upon the inner surface of the flange f with printed letters and characters corresponding to those upon the face of the type-wheel, so that they serve as a guide to the operator for showing when any letter is in the correct position for being printed from. Each notch f is located opposite a letter on the type-wheel F, in order that when the said wheel, after being turned by means of the manipulation of the button E until the desired letter and notch are directly above the guide-pin h, is pressed downward, the locking-pin it takes into the notch f, which is in front of the particular type to be printed, which type -'face will be pressed through the opening h of the foot H, and the desired chara ter will be imprinted upon the paper beneath.

The side of the plate A, forming the platen A, may be provided with a strip a, of felt, chamois, or any other equivalent suitable material.

The foot H is constructed of spring metal, and one end of the same travels along the paper and the other extremity is secured to the carriage D by the rivet C1 and also extends still farther under the same and under the guide-rod O. The spring foot H thus serves not only to sustain the type-wheel F in an elevated position, but also, by means of the extension H bearing against the under part of the carriage, to regulate the action of my machine. The free extremity of the plate H, serving as a foot for my carriage, is provided with a printing-slot h, placed, as stated, heneath the type-wheel F, and acts as a shield for the paper, the type-faces adjacent to the character Which is being printed from being thereby prevented from soiling the paper sheet. By means of the rivet d a spring j is also rigidly held between the carriage D an the foe 1H ,which sgtzing extends upward and is provided at its free extremity with two ver tical extensions, which serve, in connection with the transverse rigid spindle j to sustain and hold with gentle friction the rotatable inking-roll J against the type-faces of the wheel F.

The paper holder and guide is constructed as follows: To the rear ends of the transverse plates K K, placed at the ends of the base A, and respectively sustaining the brackets B B, is rigidly secured a longitudinal flat bar I provided 011 one side with vertical serrated teeth or rack Z, and preferably located a short distance above the base-plate A. A spring wire or flat strip M is sustained in a removable relation at the forward end 70 of one of the plates K, and serves, when the free end ofthe spring is engaged with the lip is, formed at the corresponding extremity of the other plate K, to act as a clamp or clip to hold the thereunder-placed paper sheet which is to be written upon closely down upon the platen. Extending rearwardly from the carriage D is the horizontal heel-piece D carrying a gravity-pawl G, working on the pin g, which engages with the various teeth Z of the rack Successively as the carriage D is alternately forced down by manual pressure upon the button E, and raised again by reason of the resilience of the spring-plate H, the downward movement of the heel-piece D pushing the carriage one space and the elevation of the heel-piece D and pawl G allowing the pawl to ride over one tooth and to fall into the next recess to the right every time a character is printed by the type-wheel.

In practical operation the paper sheet is inserted through the paper holder and guide L, and is held in proper position for writingby the spring-strip M. Then the operator,

keeping his eye at the printing-point, revolves the type-wheel F by the button E, until the desired letter isat the printing-point and presses the same down, whereupon the proper impression is made. The movement of my machine is easy and pleasant, and by its use perfect alignment and even impressions are secured.

As it is evident that many slight changes in the construction and relative arrangement of parts might be resorted to without departing, from the spirit and scope of my invention, I would have it understood that I do not restrict myself to the particular construction and arrangement of parts shown and described, but that I reserve the right to make such changes, and that What I claim as new, and desire to secure by Letters Patent, is-

1. In a type-writer, the combination, with a paper-holder consisting of two transverse plates, a rack-bar, and paper-guide,a spring clip, and a guide-bar mounted thereon, of a centrally-pivoted carriage adapted to work on the guide-bar and provided with a forwardly extending arm sustaining a typewheel, and a rear heel-piece carrying a pawl, the arm and heel-piece being alternately depressed, substantially as described.

2. In a type-writer, the combination, with a paper-holder consisting of two transverse plates sustaining at their respective 'ends a paper-guide and a spring-clip, and a guidebar mounted thereon, of a centrally-pivoted carriage adapted to work on the guide-bar and carrying a type-wheel, and a sustaining-spring secured thereto, substantially as described.

In testimony of the foregoing specification I do hereby sign the same, in the city of New York, county and State of New York, this 9th day of January, A. D. 1891.

ROBERT II. INGERSOLL. \Vitnesses:

WM. M. V. FOWLER, J. ODIJLL FOWLER, Jr. 

